Enzymes and Application problems
- 1. Which is true about rennet?
Options- A. It is a mixture of protease chymosin and pepsin
- B. It is a mixture of rennin and pepsin
- C. Both (a) and (b)
- D. none of the above Discuss
Correct Answer: Both (a) and (b)
- 2. The enzyme ?-galactosidase is also known as
Options- A. lactase
- B. EC3.2.1.23
- C. both (a) and (b)
- D. isomerase Discuss
Correct Answer: both (a) and (b)
- 3. Discoloration can be achieved by using
Options- A. sulphloydryl oxidase
- B. proteases
- C. anthocyanase
- D. all of these Discuss
Correct Answer: anthocyanase
- 4. Which of the enzyme combination is commercially used for the removal of oxygen?
Options- A. Glucose oxidase-cellulase
- B. Glucose oxidase-catalase
- C. Glucose oxidase-lactase
- D. All of these Discuss
Correct Answer: Glucose oxidase-catalase
- 5. Which of the following enzyme is responsible for causing vitamin B deficiency disease beriberi?
Options- A. Ascorbic acid oxidase
- B. Thiaminase
- C. Lipoxygenase
- D. None of these Discuss
Correct Answer: Thiaminase
- 6. Juice clarification extraction is facilitated by using
Options- A. cellulases
- B. amylase
- C. inulinase
- D. lactase Discuss
Correct Answer: cellulases
- 7. Which of the following metallic ion is there in ascorbic acid oxidase?
Options- A. Mg
- B. Fe
- C. Cu
- D. Mn Discuss
Correct Answer: Cu
- 8. Lysozyme is naturally present in
Options- A. egg white
- B. bacteria
- C. tears & milk
- D. all of these Discuss
Correct Answer: all of these
- 9. Milk digestibility is improved by using
Options- A. RNase
- B. lactase
- C. ?-amylase
- D. none of these Discuss
Correct Answer: lactase
- 10. Enzymes act as antimicrobials
Options- A. by depriving an organism of a necessary metabolite
- B. by generating a substances toxic to the organism
- C. by attracting a cell wall component
- D. all of the above Discuss
Correct Answer: all of the above
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